Discover 10 popular Harley-Davidson modifications that may boost a bike's visual appeal but can significantly hurt its resale value, including performance upgrades, custom audio systems, and styling ...

Honda's J35A V6 engine, found in various models from the late 1990s until today, is gaining attention among enthusiasts.

What exactly makes a lowboy different from a highboy, and why did T-buckets change hot rod culture? Here's the history every ...

Yes, the Zuffenhausen-based carmaker did build Porsche-badged sleepers, but also some that were never a Porsche, or didn't ...

The words "Volvo" and "V8" aren't frequently found in the same sentence... but there are a few exceptions.

Individual outcomes with any OBD2 fuel optimization device depend on vehicle age, driving habits, maintenance history, fuel ...

Top 10: The aircraft made great by a new engine ...

The car had three owners, and the second one kept if for 37 years, adding some beefed-up components to the 440 original ...

Plentiful mods, good handling and cheap used prices has led the pint-sized 5-door to evolve from fuel-sipping novelty to a desirable enthusiast machine.

The inline-six automotive engine does indeed offer several general advantages over a V6, but there are some I6 engines that are notoriously problematic.

Michael B. McAnelly believes the Mustang GTD is underpowered. He set out to modify his supercar to deliver more than 1,000 horsepower.

Although motor vehicle enthusiasts have been modifying their cars and trucks forever, and sometimes in legally dubious ways, the practice of "rolling coal" has become an especially hot-button topic ...